Finding the Fourth Proportional to 11,864,990.57, 16,374,322.73 and 6,637,686.90
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Solution
The fourth proportional to 11,864,990.57, 16,374,322.73 and 6,637,686.90 is: 9,160,363.58
Step by Step Solution
- Step 1: Write the proportion equation
11,864,990.57 : 16,374,322.73 = 6,637,686.90 : x - Step 2: Convert to fraction form
11,864,990.57/16,374,322.73 = 6,637,686.90/x - Step 3: Cross multiply
11,864,990.57x = 16,374,322.73 × 6,637,686.90 - Step 4: Simplify right side
11,864,990.57x = 108,687,627,448,104.81 - Step 5: Solve for x
x = 108,687,627,448,104.81/11,864,990.57 - Step 6: Final answer
x = 9,160,363.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.